Once the Buddha incarnated to Phaya Kan Kark (toads) live under a big tree. One day Phaya Tan (heaven god) didn’t ordinate rainfall to earth because of angry and unsatisfied inhuman behavior for 7 years 7 months and 7 days. It caused of war between human and god but
Human was defeated and asked some help from Phaya Kan Kark. He used a trick by attacking sting insects such as termites, moths, bees and wasps to win god. After lose, Phaya Tan defeat made a promise to rain immediately when frog make sound or human shoot the rocket fire as signal.